2SBR 2SABERSWarm Lightweight 170 Fleece Watch Cap - Men Women - Army Skull Beanie Hat

Does the cap protect against uv? upf 50?

I am exactly at size 7 1/8 or 22 1/4 (medium). does this material stretch or should i consider buying the large size for my situation? thank you !

What's does this weigh?

The one I ordered has a bill. I didn’t see that anywhere on this advertisement, are all the beanies billed or is mine wrong?